Garbage Collector issue on NNMi9.20.

Hi,

I've upgraded with success from NNMi 9.11 to NNM9.20 two systems with Application Failover. Platform is RH5.5. Then, in the Incident Browser I can see NNMi Health Critical Event with the following explanation :

"The average garbage collection pause of 53,00 seconds for the 'PS MarkSweep' collector is above the recommended maximum of 10 seconds."